Muntin assembly and method of installing

Abstract

Muntin bar molded anchors are installed on the interior edges of a window sash or sliding door frame by utilizing a two-part anchor holding and nail driving device which is stabilized during use. Molded clips are frictionally installed in recesses formed in the ends of mountain bars and the clips are snap locked over crowned surfaces of the anchors to complete the installation of the muntin assembly.

I claim: 
     
       1. A muntin bar assembly for doors or windows comprising a muntin bar having a recessed end,   a clip element frictionally held in the recessed end of the muntin bar and having a pair of spaced spring legs provided on their inner sides with opposing detent teeth,   a frame member having an inner margin extending perpendicular to the muntin bar,   an anchor element fixedly secured to the inner margin of the frame member and projecting inwardly therefrom and having an arcuate top and a pair of opposite side detent recesses adapted to receive and interlock with said detent teeth of the spring legs of the clip element when the spring legs are forced over the arcuate top of the anchor element, the recessed end of the muntin bar having side wall portions disposed outwardly of the spring legs and engaging the latter to prevent rotation of the clip element relative to the muntin bar, the clip element having a pair of opposite side notches in said spring legs, and   opposite side lugs on the anchor element engaging in said notches when the clip element is engaged with the anchor element.   
     
     
       2. A muntin bar assembly for doors or windows as defined in claim 1, and the inner margin of said frame member being profiled, and a projection on one end of the anchor element engageable with a surface of the profiled inner margin of said frame member to resist rotation of the anchor element relative to the frame member. 
     
     
       3. A muntin bar assembly for doors or windows as defined in claim 1, and said clip element including a rear split cylindrical shank portion extending rearwardly of said spring legs, said recessed end of the muntin bar having a cylindrical bore receiving said split cylindrical shank portion frictionally, and said recessed end of the muntin bar and the forward end of the clip element being profiled to match a profile of said inner margin of the frame member.